/Engine/Source/Runtime/AudioCaptureImplementations/AudioCaptureRtAudio/Public/RtAudioWrapper.h
Opens an audio stream. Returns true on success, false on error.
namespace Audio { bool Audio::OpenStream ( const [FStreamParameters](API\Runtime\AudioCaptureRtAudio\FStreamParameters) & InStreamParams, float InDesiredSampleRate, uint32 * InOutDesiredBufferNumFrames, [FAudioCallback](API\Runtime\AudioCaptureRtAudio\FAudioCallback) Callback, void * InUserData ) }